CVE-2025-38024

Estado: ModificadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug

In the function rxe_create_cq, when rxe_cq_from_init fails, the function rxe_cleanup will be called to handle the allocated resources. In fact, some memory resources have already been freed in the function rxe_cq_from_init. Thus, this problem will occur.

The solution is to let rxe_cleanup do all the work.

Detalles técnicos trazas, registros y código del informe original

Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x7d/0xa0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xcf/0x610 mm/kasan/report.c:489
 kasan_report+0xb5/0xe0 mm/kasan/report.c:602
 rxe_queue_cleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxe_queue.c:195
 rxe_cq_cleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxe_cq.c:132
 __rxe_cleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxe_pool.c:232
 rxe_create_cq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1109
 create_cq+0x658/0xb90 drivers/infiniband/core/uverbs_cmd.c:1052
 ib_uverbs_create_cq+0xc7/0x120 drivers/infiniband/core/uverbs_cmd.c:1095
 ib_uverbs_write+0x969/0xc90 drivers/infiniband/core/uverbs_main.c:679
 vfs_write fs/read_write.c:677 [inline]
 vfs_write+0x26a/0xcc0 fs/read_write.c:659
 ksys_write+0x1b8/0x200 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.22%
Percentil entre todas las CVEs puntuadas: 11
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1059 Command and Scripting Interpreterexecution70 %

Acceso local (AV:L) sin interacción de usuario (UI:N) permite escalada de privilegios vía use-after-free en RDMA/rxe; potencial ejecución de código mediante corrupción de memoria en kernel.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution Prevention Threat Intelligence Program Restrict Web-Based Content Privileged Account Management Limit Software Installation Behavior Prevention on Endpoint

Tecnologías afectadas (2)

Debian — Debian Linux Linux — Linux Kernel

CWE

CWE-416

Referencias

JSON original (NVD)

Mostrar

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug\n\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x7d/0xa0 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xcf/0x610 mm/kasan/report.c:489\n kasan_report+0xb5/0xe0 mm/kasan/report.c:602\n rxe_queue_cleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxe_queue.c:195\n rxe_cq_cleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxe_cq.c:132\n __rxe_cleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxe_pool.c:232\n rxe_create_cq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1109\n create_cq+0x658/0xb90 drivers/infiniband/core/uverbs_cmd.c:1052\n ib_uverbs_create_cq+0xc7/0x120 drivers/infiniband/core/uverbs_cmd.c:1095\n ib_uverbs_write+0x969/0xc90 drivers/infiniband/core/uverbs_main.c:679\n vfs_write fs/read_write.c:677 [inline]\n vfs_write+0x26a/0xcc0 fs/read_write.c:659\n ksys_write+0x1b8/0x200 fs/read_write.c:731\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nIn the function rxe_create_cq, when rxe_cq_from_init fails, the function\nrxe_cleanup will be called to handle the allocated resources. In fact,\nsome memory resources have already been freed in the function\nrxe_cq_from_init. Thus, this problem will occur.\n\nThe solution is to let rxe_cleanup do all the work."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/rxe: Corrección del error de lectura slab-use-after-free en rxe_queue_cleanup Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x7d/0xa0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xcf/0x610 mm/kasan/report.c:489 kasan_report+0xb5/0xe0 mm/kasan/report.c:602 rxe_queue_cleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxe_queue.c:195 rxe_cq_cleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxe_cq.c:132 __rxe_cleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxe_pool.c:232 rxe_create_cq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1109 create_cq+0x658/0xb90 drivers/infiniband/core/uverbs_cmd.c:1052 ib_uverbs_create_cq+0xc7/0x120 drivers/infiniband/core/uverbs_cmd.c:1095 ib_uverbs_write+0x969/0xc90 drivers/infiniband/core/uverbs_main.c:679 vfs_write fs/read_write.c:677 [inline] vfs_write+0x26a/0xcc0 fs/read_write.c:659 ksys_write+0x1b8/0x200 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f En la función rxe_create_cq, cuando rxe_cq_from_init falla, se llamará a la función rxe_cleanup para gestionar los recursos asignados. De hecho, ya se han liberado algunos recursos de memoria en la función rxe_cq_from_init. Por lo tanto, se producirá este problema. La solución es dejar que rxe_cleanup haga todo el trabajo."
    }
  ],
  "lastModified": "2026-07-30T06:22:45.633",
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